review

Author: petamoriken

lib/internal/per_context/domexception.js

@@ -3,6 +3,7 @@
 const {
   Error,
   ErrorPrototype,
+  FunctionPrototype,
   ObjectDefineProperties,
   ObjectDefineProperty,
   ObjectSetPrototypeOf,
@@ -49,10 +50,15 @@ const disusedNamesSet = new SafeSet()
   .add('NoDataAllowedError')
   .add('ValidationError');
 
-class DOMException {
+// The DOMException class must not inherit from the Error class,
+// but its instance inherit from Error.prototype.
+// Make the runtime aware not to allocate `this` instance unnecessarily.
+class DOMException extends Error {
+  static {
+    ObjectSetPrototypeOf(DOMException, FunctionPrototype);
+  }
+
   constructor(message = '', options = 'Error') {
-    // The DOMException class must not inherit from the Error class,
-    // but its instance inherit from Error.prototype.
     // The stack property and [[ErrorData]] internal slot are given.
     const error = ReflectConstruct(Error, [], new.target);